package com.dong.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "EncodingFilter", urlPatterns = "*")
public class EncodingFilter implements Filter {


    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) resp;
        request.setCharacterEncoding("utf-8");


        if (!request.getServletPath().toLowerCase().endsWith(".html")) {
            // 为html资源时，不再设置响应浏览器的编码
            response.setContentType("text/html;charset=UTF-8");
            response.setCharacterEncoding("utf-8");
        }
        chain.doFilter(request, response);
    }


}
